SER Performance Analysis and Power Allocation for Amplify-and-Forward Relay Networks

摘要：

In this paper, we analyze the symbol-error-rate (SER) performance for a two-user amplify-and-forward coopera- tive system. The closed-form SER formulation with PSK signals is derived first, a upper bound is established to show the asymptotic performance of the cooperation protocol which is tight at high signal-to-noise ratio (SNR). Moreover, we develop an optimum power allocation method (OPA) for the cooperative system to minimize the SER. It turns out that this OPA method does not depend on the direct link between source and destination, it depends only on the channel links related to the relay. We also find that the SER performance is better when the relay is near the destination with OPA method.

关键词： cooperation communication power allocation SER

作者: Yan Wang Fei Lin

作者单位: School of Economics & Management Beijing University of Posts & Telecommunications Beijing, P.R.China School of Economics & Management Beijing University of Posts & Telecommunications Beijing, P.R.China

会议类型: 国际会议

会议名称: 第三届IEEE无线通讯、网络技术暨移动计算国际会议

会议地点: 上海

会议语种:英文

在线出版日期: 2007-09-21（万方平台首次上网日期，不代表论文的发表时间）